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            Automobile mold injection conditions:
                     Surface highlights, electroplated parts, cannot be weld marks there;
                     Lamp accessories, transparent, exterior parts;
                     Internal precision parts, high dimensional requirements,
                     engineering materials plus fiber fireproof materials.


            Key points of product injection molding:
                     1. no weld line, oil and cylinder for sequential control of injection
                         multi-point integral valve gate .
                     2. transparent or exterior parts, without yellow or mixed colors.
                     3. add glass fiber parts and nozzles shall be wear-resistant and
                        corrosion-resistant.








Application case

Integrated hot runner valve gate sequence control
    Plug and play, convenient installation, no leakage.
    Advantage 1: integrated pre-installation design of hot runner system, simplified processing requirements,
    all kinds of lines adopt track layout, compact and safe structure.
    Advantage 2: the accessories have been installed on the manifold, and the system is fully tested before
    ship from the factory, effectively eliminating the leakage problem of the hot runner system.
    Advantage 3: can configure the cylinder system and oil cylinder system, high quality requirements to
    ensure stable quality.Equipped with sequence controller, no weld line.


Injection molding material: PP, ABS, PC+ABS, PC, PMMA, etc
    Injection way: integrated valve gate, integrated open gate
    Customers: GM, BYD, Huaxiang, Tianhe, Junyi, etc
    Zhenxiong hot runner advantages:
    1.  plug and play integrated system anti-leakage project, professional automobile hot runner system;
    2). the mold installation is simple and convenient, which is not limited in site by the level of  installation
        personnel;
    3). the wire and air circuit have been connected and tested before leaving the factory.No leakage and
        thread pressing;Long-term injection molding production is stable, 
the hot runner system is designed
       according to the service life of 1 million molds.


 














    ◆
The most perfect gate mark
    ◆The lowest shear flow and the best smooth flow
    ◆The fastest color changing effects.
    ◆To provide special shaped gate and nozzle types for PMMA and PC material.
    ◆To provide the best gate location which can prevent the products’ surface generating streaks.
    ◆The perfect gate marks make the product surfacemore beautiful.












Zhenxiong provides integrated solutions for customers:
Mold structure analysis + plastic product analysis + injection molding and mold flow analysis +
hot runner design metal materials + polymer materials + heat conduction + fluid analysis
 
Zhenxiong can provide solutions according to customer requirements, including:
2D design drawing
3D design drawing (after 2D confirmation)
Mold flow analysis report





Product surface weld line 
valve sequential control injection  can eliminate the product surface weld line.
 
Product standard 
1.Zhenxiong adopts integrated time schedule controller with two working modes, diverse signal types and accuracy of 0.01s
   The material import
2.The valve guide bushing and valve needle are custom made by Punch. The sealing element is imported from Switzerland, high temperature resistance,
   oil resistance, stable quality.
3.Technology standard
3. The solenoid valve is imported from South Korea YPC, with stable quality, sensitive response, reliable quality and durability.


























     The sequence of valve sequence injection can eliminate the weld line on the surface
     of the product.The sequence of 4-point valve in this product can control the glue injection ,
     with G1 normally open, G2 delay of 0.9s, G3 delay of 1.32s, and G4 delay of 1.86s
 














     The sequence of valve injection  can eliminate the wield line on the surface of the
     product.The sequence of 3-point valve in thisproduct can control the injection .
     The G1 and G3nozzles will be opened when the G2 hot nozzles are filled to 1.6s.
















Solution

     》Reasons for system leakage.
    ■ 
Zhenxiong manifold is inserts and polished by the runner polishing machine
         Along with Hot fit application (interference fit) without leakage .


         Leakage of nozzle sealing
    
■ Zhenxiong has strict testing training and requirements for all the installation
        personnel. Only when all the dimensions are processed accurately according
        to the drawings can they be  installed to ensure no leakage.

         Nozzle and manifold matching surface leakage.
    
■ zhenxiong design has avoided possible machining errors, as shown in the
        right figure
    
■ Zhenxiong focuses on engineering materials and high glass fiber products
        Imported steel, specially treated, more wear - resistant and corrosion - resistant
    
■ Zhenxiong nozzles are made of imported steel with special treatment,
        effectively ensuring the life of products. The quality of hot runner products is
        designed with 10 years' service life, and  the design life of products with fiber
        added within 15% is designed with 2 million times of mold.


 





  》Zhenxiong focuses on engineering material and high fiber  products
      
Imported steel, specially treated, more wear - resistant and corrosion -resistant
      Zhenxiong nozzles are made of imported steel with special treatment, effectively ensuring the life of products. The quality of hot runner
      products is designed with 10 years' service life, and the design life of products with fiber added within 15% is designed with 2 million times of mold.





    Reasons for products yellowing ,black coating.
   
■ Dead angle existed in nozzle outlet .
        Zhenxiong has professional MTO patent for molding transparent/color  changing  products nozzle.This type of nozzle
        has no dead angle, fast  color change  and small pressure loss.
   
■ There is a dead angle at the corner of the manifold. The plug at the 
         junction angle of the runner adopts smooth transition, and the special 
         position adopts mosaic structure to ensure the junction angle is smooth.
   
■ The plastic material stays in the runner too long.
         See attached page for detailed calculation of plastic injection volume and
         residence time






Nozzle temperature difference accuracy
   The internal temperature error of zhenxiong nozzle is no more than 10 degrees.
     
    product standard

    1. 90% of the products are standardized and 90% are in
         sufficient inventory.
        Standardized production ensures the consistency of quality.
    2. Material import
        Nozzles are made of ASSAB imported materials, and the
        processing technology is strictly controlled to ensure the 
        interchangeability of     
       nozzles  effectively.
    3 .Process standard
        The heating coil winding method has been tested strictly, the winding 
        process is standardized, and high quality is required to ensure stable 
        quality.
 






  》Causes of wire drawing drooling of gate.
       There is no reasonable cooling at the tip of the nozzle.
       Reasonable cooling water line should be designed near the nozzle gate to increase
       cooling Water line can avoid problems such as wire drawing and drooling caused by
       heat accumulation at the gate 
       The nozzle selection is unreasonable
       Zhenxiong nozzle is a special structure without nozzle core, without drawing and
       drooling. Valve type nozzle is recommended for drawing caused by extreme injection
       molding condition .
       The temperature of nozzle is not stable and the long-term production stability is poor.
       Zhenxiong heating accessories are imported , see the attached page


















   》Causes for valve needle stuck:
         1. The valve needle is too long with the needle brush.
         The matching length between the guide brush and the valve needle of zhenxiong
         is shorter than other companies,which get less needle stuck.
     2. Improper fitting tolerance between valve needle and needle brushing.
         The matching tolerance between the guide brush and the valve needle of Zhenxiong
         is customized according to the fiber adding material, and it has been tested and verified
         repeatedly to ensure no leakage and needle stuck.
     3. Processing error leads to unqualified or unstable quality.


























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